EP2679106B1 - Cigarette filter manufacturing device and cigarette filter manufacturing method - Google Patents
Cigarette filter manufacturing device and cigarette filter manufacturing method Download PDFInfo
- Publication number
- EP2679106B1 EP2679106B1 EP11859523.0A EP11859523A EP2679106B1 EP 2679106 B1 EP2679106 B1 EP 2679106B1 EP 11859523 A EP11859523 A EP 11859523A EP 2679106 B1 EP2679106 B1 EP 2679106B1
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- EP
- European Patent Office
- Prior art keywords
- tow
- tongue
- cigarette filter
- distal ends
- threads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0229—Filter rod forming processes
- A24D3/0241—Filter rod forming processes by compacting particulated materials
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
Definitions
- the present invention relates to an apparatus for manufacturing a cigarette filter including a string impregnated with a flavoring or the like, and a method of manufacturing the cigarette filter.
- a cigarette which achieves unique flavor by extending a plurality of threads impregnated with menthol through a filter, and an apparatus of manufacturing the cigarette filter are disclosed.
- the cigarette filter manufacturing apparatus comprises a duct-like tongue having a tapering shape, a convergence guide which is provided more upstream than the tongue and configured to supply a filter tow to the tongue, a plurality of cylindrical needles which supply threads impregnated with menthol or the like into the tongue, and a stuffer jet which feeds the filter tow to the convergence guide by using air pressure.
- the needles are arranged from the outside of the tongue into the tongue, in an oblique direction, not a direction perpendicular to the central axis of the tongue.
- a plurality of threads which are fed through the needles are conveyed together with the filter tow, and arranged in predetermined positions in the filter (see Patent Literature 1).
- a cigarette filter manufacturing apparatus which supplies a thread to a filter tow by a thread supply tube.
- a thread is supplied from below to the filter tow, and thereby a filter in which the thread extends through a cross section thereof is formed (see Patent Literature 2).
- Patent Literature 1 the filter tow in the tongue is continuously pulled downstream by a garniture tape.
- the threads tend to gather toward the central axis of the tongue. So, it is difficult to arrange the threads to disperse at regular intervals in a cross section of the filter.
- a cigarette filter manufacturing apparatus comprises a stuffer jet which feeds a tow together with air, a tongue which molds the tow into a bar, a convergence guide which is provided in a position between the stuffer jet and the tongue, and converges the tow while guiding the tow toward the tongue, and a plurality of thread introducing tubes which extend in a position between an outlet of the stuffer jet and an introducing part of the tongue such that intervals between the thread introducing tubes are gradually reduced toward the downstream, and supply respective threads into the tow from their downstream distal ends.
- a method of manufacturing a cigarette filter according to an embodiment of the present invention comprises: supplying a plurality of threads from distal ends of thread introducing tubes which extend in a position between an outlet of the stuffer jet and an introducing part of the tongue such that intervals between the thread introducing tubes are gradually reduced toward the downstream; and molding the tow including the threads into a bar in the tongue.
- a cigarette filter manufacturing apparatus 11 comprises a tow processing section 12, a plasticizer transfer section 13, a molding section 14, and a wrapping section 15, as an example.
- the tow processing section 12 includes a bail 16, which contains a filter material formed of cellulose acetate fibers, that is, tow, and a tow channel 17 extends from the bail 16.
- a primary banding jet 21, a guide roller 22, a pair of pretension rollers 23, a pair of blooming rollers 24, a secondary banding jet 25, and a pair of feeding rollers 26 are arranged in this order from the bail 16 in the tow channel 17, and the feeding rollers 26 are arranged at the end of the tow channel 17.
- the primary banding jet 21 jets out compressed air from the bail 16 toward the tow 18.
- the compressed air jetted increases (spread) intervals between fibers of the tow 18, and moderately stretches crimps of the tow 18.
- the pretension rollers 23 provides the tow 18 with predetermined tension in cooperation with the blooming rollers 24, to further stretch the crimps of the tow 18.
- the blooming rollers 24 feed the tow 18, in which intervals between fibers have been increased, to the secondary banding jet 25.
- the secondary banding jet 25 jets out compressed air toward the bundle of the tow 18, and further increases intervals between fibers of the bundle.
- the bundle of the tow 18 spreads in a width direction of the tow channel 17, and forms a flat filter web 27.
- the filter web 27 passes through the feeding rollers 26.
- a plasticizer such as triacetin is transferred in advance to the feeding rollers 26 by the plasticizer transfer section 13.
- the forwarding rollers 26 can supply the transferred plasticizer to the filter web 27.
- the filter web 27 (tow, that is, cellulose acetate fibers), to which the plasticizer has been added, is provided with adhesiveness by the effect of dissolution of acetate by the plasticizer. Bonding points which are bonded by adhesiveness are formed in a plurality of positions between adjacent acetate fibers.
- the filter web 27 (tow 18) is sent to the stuffer jet 41 of the molding section 14 by the feeding rollers 26.
- a spray nozzle may be provided above the filter web 27 in a position between the feeding rollers 26 and the stuffer jet 41, and the plasticizer may be sprayed on the filter web 27 from the spray nozzle.
- the molding section 14 includes a stuffer jet 41 which sends the tow 18 (filter web 27) to the tongue 42 together with air, a tongue 42 which molds the tow 18 into a bar, a convergence guide 43 (trumpet guide) provided in a position between the stuffer jet 41 and the tongue 42, and a plurality of thread introducing tubes 45 configured to supply threads 44 to the tow 18 in the convergence guide 43.
- a stuffer jet 41 which sends the tow 18 (filter web 27) to the tongue 42 together with air
- a tongue 42 which molds the tow 18 into a bar
- a convergence guide 43 (trumpet guide) provided in a position between the stuffer jet 41 and the tongue 42
- a plurality of thread introducing tubes 45 configured to supply threads 44 to the tow 18 in the convergence guide 43.
- the stuffer jet 41 includes an outlet 46, from which the tow 18 is discharged, and an edge part 47 which defines the periphery of the outlet 46.
- the convergence guide 43 includes a plurality of air vents 48 to let the air out.
- the convergence guide 43 has a roughly funnel shape.
- the convergence guide 43 can converge the tow 18 to a certain degree, while guiding the tow 18 sent from the stuffer jet 41 toward the tongue 42.
- a space between the outlet 46 of the stuffer jet 41 and the convergence guide 43 has a half-closed state in which a channel for feeding the tow 18 is surrounded by the thread introducing tubes 45.
- Thread introducing tubes 45 there are three thread introducing tubes 45 in the present embodiment, this number is not limited. Two or four thread introducing tubes 45 may be used. Each thread introducing tube 45 is formed in a cylindrical shape by, for example, a metal material. Threads 44 (string) run through the respective thread introducing tubes 45, and thereby the threads 44 can be supplied to the tow 18 running through the convergence guide 43.
- the threads 44 may contain a flavoring, such as a menthol flavoring solution and a tobacco extracted solution, or may be colored with any color.
- the threads 44 may be impregnated with different types of flavorings or colored with different colors, or the same flavoring or color.
- each thread introducing tube 45 is arranged at regular intervals in three positions, for example, around the outlet 46 of the stuffer jet 41.
- Each thread introducing tube 45 includes a fixed part 51 which is fixed onto the edge part 47 of the stuffer jet 41, a distal end 52 which extends from the fixed part 51 toward the convergence guide 43, and a bent part 53 which connects the fixed part 51 with the distal end 52.
- the fixed part 51 is fixed by welding or the like onto the edge part 47 of the stuffer jet 41.
- the distal end 52 is provided in a position between the outlet 46 of the stuffer jet 41 and an introducing part 42A of the tongue 42, more specifically, inside the convergence guide 43.
- the distal end 52 extends in a direction parallel with (parallel with the stream of the tow 18) a central axis 41A of (the outlet 46 of) the stuffer jet 41.
- the bent part 53 extends from the fixed part 51 in a direction parallel with the stuffer jet 41, and then obliquely extends to go toward a radial inside of the stuffer jet 41. Specifically, intervals between the bent parts 53 are reduced toward the downstream in a position between the outlet 46 of the stuffer jet 41 and the introducing part 42A of the tongue 42.
- each thread introducing tube 45 is provided in a position inner than the edge part 47 of the stuffer jet 41. As illustrated in FIG. 4 , although the distal ends 52 of the thread introducing tubes 45 are arranged inner than the edge part 47, a space is provided among the distal ends 52. Thus, tow 18 of a fixed amount can pass through the space among the distal ends 52 of the thread introducing tubes 45.
- the tongue 42 further compresses the tow 18 sent from the convergence guide 43, and can mold the tow 18 into a rod member having a bar shape.
- the tongue 42 has a tapered shape as a whole and includes, at its inlet or around the inlet, the introducing part 42A which is spread toward the convergence guide 43.
- the wrapping section 15 includes a molding bed (not shown) which extends in a horizontal direction, an endless garniture tape 54 which runs on the molding bed, a wrapping former, a heater, and a cooler, which are not shown.
- the garniture tape 54 is provided below the tongue 42 and extends below the wrapping former, the heater, and the cooler.
- the garniture tape 54 adsorbs the rod member (tow 18), which has been molded into a bar in the tongue 42, and sends the rod member to the wrapping section 15.
- a paper web 55 is supplied onto the garniture tape 54.
- the paper web 55 is guided from a paper roll to the garniture tape 54 through a spray gun 56.
- the spray gun 56 applies an adhesive, that is, rail glue, to a center of the paper web 55 in the width direction of the paper web 55.
- the rod member is superposed on the paper web 55 at the inlet of the wrapping section 15.
- the rod member and the paper web 55 are adhered to each other with the rail glue. Thereafter, the rod member and the paper web 55 run on the molding bed together with the garniture tape 54, and successively pass through the tongue 42, the wrapping former, the heater, and the cooler.
- the tongue 42 further compresses the rod member (tow 18) through the garniture tape 54 and the paper web 55, in cooperation with the molding bed.
- a cross section of the rod member is molded to have a circular shape, and the paper web 55 and the garniture tape 54 are bent to have a U-shaped cross section. At this point in time, the lower half of the rod member is covered with the paper web 55.
- a side edge part of the paper web 55 is put on one side of the upper half of the rod member with the garniture tape 54, and simultaneously a glue spray (not shown) of the wrapping former applies seam glue to the other side edge of the paper web 55.
- the other side edge of the paper web 55 is put on the rod member with the garniture tape 54 in the same manner, and superposed on one side edge of the paper web 55 with the seam glue interposed therebetween.
- the both side edges of the paper web 55 are adhered by the seam glue, and the rod member is entirely wrapped in the paper web 55. Thereby, a filter rod continuous member 57 is formed.
- the wrapping section 15 includes a rotating knife 58 in a downstream position of the garniture tape 54.
- the rotating knife 58 cuts the filter rod continuous member 57 into individual filter rods, and thereby cigarette filters 61 as illustrated in FIG. 6 are finished.
- the threads 44 or the tow 18 do not move, and the threads 44 do not change in position.
- the distal ends 52 of the thread introducing tubes 45 extend in a direction parallel with the central axis 41A (the stream of the tow 18) of the stuffer jet 41, as illustrated in FIG. 2 . So, the direction in which the threads 44 are let out is defined by the distal ends 52, and a tendency that the threads 44 are concentrated into the central part of the cigarette filter 61 is removed, even when the tow 18 is pulled by the garniture tape 54 in a downstream position.
- the cigarette filter manufacturing apparatus 11 comprises the stuffer jet 41 which sends the tow 18 together with air, the tongue 42 which molds the tow 18 into a bar, the convergence guide 43 which is provided in a position between the stuffer jet 41 and the tongue 42 and converges the tow 18 while guiding the tow 18 toward the tongue 42, and a plurality of thread introducing tubes 45, intervals between which are reduced toward the downstream in a position between the outlet 46 of the stuffer jet 41 and the introducing part 42A of the tongue 42, and which supplies respective threads 44 from the respective downstream distal ends 52 into the tow 18.
- a plurality of threads 44 are supplied from distal ends 52 of the thread introducing tubes 45 which extend such that intervals between them are reduced toward downstream in a position between the outlet 46 of the stuffer jet 41 and the introducing part 42A of the tongue 42, and the tow 18 including the threads 44 are molded into a bar in the tongue 42.
- concentration of the threads 44 into the central part in the cigarette filter 61 deteriorates the appearance of the product, and causes defects such as undesirable transfer of the flavoring contained in one thread 44 to another thread 44.
- the distal ends 52 of the thread introducing tubes 45 extend in parallel with the central axis 41A of the stuffer jet 41 (parallel with the stream of the tow 18), and thus the direction of letting out the threads 44 can be defined by the distal ends 52 when the threads 44 are let out.
- the threads 44 do not concentrate in the central part of the cigarette filter 61, and the threads 44 can be arranged at regular intervals in a cross section of the cigarette filter 61.
- the desired flavor can be obtained as a cigarette, and the product can be manufactured with a good appearance.
- the distal ends 52 of the thread introducing tubes 45 are arranged in the convergence guide 43.
- the distal ends 52 of the thread introducing tubes 45 can be arranged in positions before a part where the density of the tow 18 increases. Thereby, the distal ends of the thread introducing tubes 45 do not prevent the stream of the tow 18, and the frequency of malfunctions, such as the problem that the apparatus is clogged with the tow 18, is reduced. Even when the threads 44 are introduced into the tow 18 in the convergence guide 43, the threads 44 do not move thereafter or have a concentrated arrangement.
- the thread introducing tubes 45 are arranged at regular intervals around the outlet 46 of the stuffer jet 41.
- the threads 44 can be arranged with a good appearance in the cross section of the cigarette filter 61.
- the present invention is not limited to the above embodiment.
- the distal ends 52 of the thread introducing tubes 45 are provided in the convergence guide 43 in the above embodiment, the distal ends 52 may be arranged in the introducing part 42A of the tongue 42.
Description
- The present invention relates to an apparatus for manufacturing a cigarette filter including a string impregnated with a flavoring or the like, and a method of manufacturing the cigarette filter.
- For example, a cigarette which achieves unique flavor by extending a plurality of threads impregnated with menthol through a filter, and an apparatus of manufacturing the cigarette filter are disclosed. The cigarette filter manufacturing apparatus comprises a duct-like tongue having a tapering shape, a convergence guide which is provided more upstream than the tongue and configured to supply a filter tow to the tongue, a plurality of cylindrical needles which supply threads impregnated with menthol or the like into the tongue, and a stuffer jet which feeds the filter tow to the convergence guide by using air pressure.
- The needles are arranged from the outside of the tongue into the tongue, in an oblique direction, not a direction perpendicular to the central axis of the tongue. A plurality of threads which are fed through the needles are conveyed together with the filter tow, and arranged in predetermined positions in the filter (see Patent Literature 1).
- In addition, there is a cigarette filter manufacturing apparatus which supplies a thread to a filter tow by a thread supply tube. In this example, in the tongue, a thread is supplied from below to the filter tow, and thereby a filter in which the thread extends through a cross section thereof is formed (see Patent Literature 2).
- In the same manner, there is another example of a cigarette filter manufacturing apparatus, which supplies a thread to a filter tow by a thread supply tube. In the apparatus, a thread is supplied from above to a flow of the filter tow, and thereby a filter in which the thread extends through a cross section thereof is formed (see Patent Literature 3).
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- Patent Literature 1: International Publication
WO 2010/108739A1 - Patent Literature 2: Jpn.
PCT National Publication JP 2005-521399 - Patent Literature 3: Jpn.
PCT National Publication JP 2010-504736 - In
Patent Literature 1, however, the filter tow in the tongue is continuously pulled downstream by a garniture tape. Thus, when the needles are simply arranged obliquely toward the inside of the tongue as described above, the threads tend to gather toward the central axis of the tongue. So, it is difficult to arrange the threads to disperse at regular intervals in a cross section of the filter. - In addition, although a plurality of threads may be supplied by using the single thread supply tube in the apparatuses of Patent Literatures 2 and 3, no measures can be taken for the density of the filter tow, and consequently the threads undesirably crowd. In addition, since the apparatuses have the structure in which a thread is supplied to the filter tow from above or below, there is the problem that a plurality of threads are concentrated to a peripheral part of the filter.
- A cigarette filter manufacturing apparatus according to an embodiment of the present invention comprises a stuffer jet which feeds a tow together with air, a tongue which molds the tow into a bar, a convergence guide which is provided in a position between the stuffer jet and the tongue, and converges the tow while guiding the tow toward the tongue, and a plurality of thread introducing tubes which extend in a position between an outlet of the stuffer jet and an introducing part of the tongue such that intervals between the thread introducing tubes are gradually reduced toward the downstream, and supply respective threads into the tow from their downstream distal ends.
- A method of manufacturing a cigarette filter according to an embodiment of the present invention comprises: supplying a plurality of threads from distal ends of thread introducing tubes which extend in a position between an outlet of the stuffer jet and an introducing part of the tongue such that intervals between the thread introducing tubes are gradually reduced toward the downstream; and molding the tow including the threads into a bar in the tongue.
- According to the above structure, it is possible to provide a cigarette filter manufacturing apparatus and a cigarette filter manufacturing method, which enable arrangement of threads at regular intervals in the filter.
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FIG. 1 is a side view of a cigarette filter manufacturing apparatus according to the present embodiment. -
FIG. 2 is an enlarged side view of a part of the cigarette filter manufacturing apparatus illustrated inFIG. 1 , including a convergence guide. -
FIG. 3 is a cross-sectional view taken along line F3-F3 illustrated inFIG. 2 . -
FIG. 4 is a cross-sectional view taken along line F4-F4 illustrated inFIG. 2 . -
FIG. 5 is a cross-sectional view illustrating a flow of a filter tow passing through the convergence guide illustrated inFIG. 2 . -
FIG. 6 is a perspective view of a cigarette filter manufactured by the cigarette filter manufacturing apparatus according to the present embodiment. - As illustrated in
FIG. 1 , a cigarettefilter manufacturing apparatus 11 comprises atow processing section 12, aplasticizer transfer section 13, amolding section 14, and awrapping section 15, as an example. - The
tow processing section 12 includes abail 16, which contains a filter material formed of cellulose acetate fibers, that is, tow, and atow channel 17 extends from thebail 16. Aprimary banding jet 21, aguide roller 22, a pair ofpretension rollers 23, a pair ofblooming rollers 24, asecondary banding jet 25, and a pair offeeding rollers 26 are arranged in this order from thebail 16 in thetow channel 17, and thefeeding rollers 26 are arranged at the end of thetow channel 17. - When a
tow 18 which is sent out of thebail 16 passes through theprimary banding jet 21, the primary bandingjet 21 jets out compressed air from thebail 16 toward thetow 18. The compressed air jetted increases (spread) intervals between fibers of thetow 18, and moderately stretches crimps of thetow 18. - The
pretension rollers 23 provides thetow 18 with predetermined tension in cooperation with theblooming rollers 24, to further stretch the crimps of thetow 18. Theblooming rollers 24 feed thetow 18, in which intervals between fibers have been increased, to thesecondary banding jet 25. - The
secondary banding jet 25 jets out compressed air toward the bundle of thetow 18, and further increases intervals between fibers of the bundle. As a result, the bundle of thetow 18 spreads in a width direction of thetow channel 17, and forms aflat filter web 27. Thereafter, thefilter web 27 passes through thefeeding rollers 26. A plasticizer such as triacetin is transferred in advance to thefeeding rollers 26 by theplasticizer transfer section 13. When thefeeding rollers 26 send the filter web 27 (tow 18), theforwarding rollers 26 can supply the transferred plasticizer to thefilter web 27. - The filter web 27 (tow, that is, cellulose acetate fibers), to which the plasticizer has been added, is provided with adhesiveness by the effect of dissolution of acetate by the plasticizer. Bonding points which are bonded by adhesiveness are formed in a plurality of positions between adjacent acetate fibers. The filter web 27 (tow 18) is sent to the
stuffer jet 41 of themolding section 14 by thefeeding rollers 26. A spray nozzle may be provided above thefilter web 27 in a position between thefeeding rollers 26 and thestuffer jet 41, and the plasticizer may be sprayed on thefilter web 27 from the spray nozzle. - As illustrated in
FIG. 2 , themolding section 14 includes astuffer jet 41 which sends the tow 18 (filter web 27) to thetongue 42 together with air, atongue 42 which molds thetow 18 into a bar, a convergence guide 43 (trumpet guide) provided in a position between thestuffer jet 41 and thetongue 42, and a plurality ofthread introducing tubes 45 configured to supplythreads 44 to thetow 18 in theconvergence guide 43. - The
stuffer jet 41 includes anoutlet 46, from which thetow 18 is discharged, and anedge part 47 which defines the periphery of theoutlet 46. Theconvergence guide 43 includes a plurality ofair vents 48 to let the air out. Theconvergence guide 43 has a roughly funnel shape. Theconvergence guide 43 can converge thetow 18 to a certain degree, while guiding thetow 18 sent from thestuffer jet 41 toward thetongue 42. As illustrated inFIG. 2 , a space between theoutlet 46 of thestuffer jet 41 and theconvergence guide 43 has a half-closed state in which a channel for feeding thetow 18 is surrounded by thethread introducing tubes 45. - Although there are three
thread introducing tubes 45 in the present embodiment, this number is not limited. Two or fourthread introducing tubes 45 may be used. Eachthread introducing tube 45 is formed in a cylindrical shape by, for example, a metal material. Threads 44 (string) run through the respectivethread introducing tubes 45, and thereby thethreads 44 can be supplied to thetow 18 running through theconvergence guide 43. Thethreads 44 may contain a flavoring, such as a menthol flavoring solution and a tobacco extracted solution, or may be colored with any color. Thethreads 44 may be impregnated with different types of flavorings or colored with different colors, or the same flavoring or color. - As illustrated in
FIG. 2 andFIG. 3 , thethread introducing tubes 45 are arranged at regular intervals in three positions, for example, around theoutlet 46 of thestuffer jet 41. Eachthread introducing tube 45 includes a fixedpart 51 which is fixed onto theedge part 47 of thestuffer jet 41, adistal end 52 which extends from the fixedpart 51 toward theconvergence guide 43, and abent part 53 which connects the fixedpart 51 with thedistal end 52. Thefixed part 51 is fixed by welding or the like onto theedge part 47 of thestuffer jet 41. - The
distal end 52 is provided in a position between theoutlet 46 of thestuffer jet 41 and an introducingpart 42A of thetongue 42, more specifically, inside theconvergence guide 43. Thedistal end 52 extends in a direction parallel with (parallel with the stream of the tow 18) acentral axis 41A of (theoutlet 46 of) thestuffer jet 41. Thebent part 53 extends from the fixedpart 51 in a direction parallel with thestuffer jet 41, and then obliquely extends to go toward a radial inside of thestuffer jet 41. Specifically, intervals between thebent parts 53 are reduced toward the downstream in a position between theoutlet 46 of thestuffer jet 41 and the introducingpart 42A of thetongue 42. In addition, thedistal end 52 of eachthread introducing tube 45 is provided in a position inner than theedge part 47 of thestuffer jet 41. As illustrated inFIG. 4 , although the distal ends 52 of thethread introducing tubes 45 are arranged inner than theedge part 47, a space is provided among the distal ends 52. Thus, tow 18 of a fixed amount can pass through the space among the distal ends 52 of thethread introducing tubes 45. - As illustrated in
FIG. 2 , thetongue 42 further compresses thetow 18 sent from theconvergence guide 43, and can mold thetow 18 into a rod member having a bar shape. Thetongue 42 has a tapered shape as a whole and includes, at its inlet or around the inlet, the introducingpart 42A which is spread toward theconvergence guide 43. - As illustrated in
FIG. 1 andFIG. 2 , thewrapping section 15 includes a molding bed (not shown) which extends in a horizontal direction, anendless garniture tape 54 which runs on the molding bed, a wrapping former, a heater, and a cooler, which are not shown. Thegarniture tape 54 is provided below thetongue 42 and extends below the wrapping former, the heater, and the cooler. Thegarniture tape 54 adsorbs the rod member (tow 18), which has been molded into a bar in thetongue 42, and sends the rod member to thewrapping section 15. - At the inlet of the
wrapping section 15, apaper web 55 is supplied onto thegarniture tape 54. Thepaper web 55 is guided from a paper roll to thegarniture tape 54 through aspray gun 56. Thespray gun 56 applies an adhesive, that is, rail glue, to a center of thepaper web 55 in the width direction of thepaper web 55. - The rod member is superposed on the
paper web 55 at the inlet of thewrapping section 15. The rod member and thepaper web 55 are adhered to each other with the rail glue. Thereafter, the rod member and thepaper web 55 run on the molding bed together with thegarniture tape 54, and successively pass through thetongue 42, the wrapping former, the heater, and the cooler. - The
tongue 42 further compresses the rod member (tow 18) through thegarniture tape 54 and thepaper web 55, in cooperation with the molding bed. In this processing, a cross section of the rod member is molded to have a circular shape, and thepaper web 55 and thegarniture tape 54 are bent to have a U-shaped cross section. At this point in time, the lower half of the rod member is covered with thepaper web 55. - Thereafter, while the rod member passes through the wrapping former, a side edge part of the
paper web 55 is put on one side of the upper half of the rod member with thegarniture tape 54, and simultaneously a glue spray (not shown) of the wrapping former applies seam glue to the other side edge of thepaper web 55. Then, the other side edge of thepaper web 55 is put on the rod member with thegarniture tape 54 in the same manner, and superposed on one side edge of thepaper web 55 with the seam glue interposed therebetween. At this point in time, the both side edges of thepaper web 55 are adhered by the seam glue, and the rod member is entirely wrapped in thepaper web 55. Thereby, a filter rodcontinuous member 57 is formed. - When the filter rod
continuous member 57 passes through the heater and the cooler, the seam glue is successively dried and cooled. Thewrapping section 15 includes arotating knife 58 in a downstream position of thegarniture tape 54. The rotatingknife 58 cuts the filter rodcontinuous member 57 into individual filter rods, and thereby cigarette filters 61 as illustrated inFIG. 6 are finished. - Functions of the
thread introducing tubes 45, each of which includes thedistal end 52 in theconvergence guide 43, and theconvergence guide 43 will be explained with reference toFIG. 5 . When the tow 18 (filter web 27) is fed from thestuffer jet 41 into the inside space between thethread introducing tubes 45 together with the air,part 18A of thetow 18 is fed toward the space among the distal ends 52 of thethread introducing tubes 45. Theother parts 18B of thetow 18 go around to parts outside the distal ends 52 of thethread introducing tubes 45. As described above, since theother parts 18B of thetow 18 go around when thetow 18 passes through the distal ends 52 of thethread introducing tubes 45, thepart 18A of the tow located inside thethreads 44 and theother parts 18B of the tow located outside thethreads 44 have uniform density after the tow has passed through the distal ends 52 of thethread introducing tubes 45. Thus, in the following filter molding step, thethreads 44 or thetow 18 do not move, and thethreads 44 do not change in position. - In addition, in the cigarette filter manufacturing apparatus according to the present embodiment, the distal ends 52 of the
thread introducing tubes 45 extend in a direction parallel with thecentral axis 41A (the stream of the tow 18) of thestuffer jet 41, as illustrated inFIG. 2 . So, the direction in which thethreads 44 are let out is defined by the distal ends 52, and a tendency that thethreads 44 are concentrated into the central part of thecigarette filter 61 is removed, even when thetow 18 is pulled by thegarniture tape 54 in a downstream position. - According to the present embodiment, the cigarette
filter manufacturing apparatus 11 comprises thestuffer jet 41 which sends thetow 18 together with air, thetongue 42 which molds thetow 18 into a bar, theconvergence guide 43 which is provided in a position between thestuffer jet 41 and thetongue 42 and converges thetow 18 while guiding thetow 18 toward thetongue 42, and a plurality ofthread introducing tubes 45, intervals between which are reduced toward the downstream in a position between theoutlet 46 of thestuffer jet 41 and the introducingpart 42A of thetongue 42, and which suppliesrespective threads 44 from the respective downstream distal ends 52 into thetow 18. - According to the cigarette filter manufacturing method of the present embodiment, a plurality of
threads 44 are supplied fromdistal ends 52 of thethread introducing tubes 45 which extend such that intervals between them are reduced toward downstream in a position between theoutlet 46 of thestuffer jet 41 and the introducingpart 42A of thetongue 42, and thetow 18 including thethreads 44 are molded into a bar in thetongue 42. - Generally, concentration of the
threads 44 into the central part in thecigarette filter 61 deteriorates the appearance of the product, and causes defects such as undesirable transfer of the flavoring contained in onethread 44 to anotherthread 44. - According to the above structure, the distal ends 52 of the
thread introducing tubes 45 extend in parallel with thecentral axis 41A of the stuffer jet 41 (parallel with the stream of the tow 18), and thus the direction of letting out thethreads 44 can be defined by the distal ends 52 when thethreads 44 are let out. Thereby, when thefilter tow 18 is sent together with thethreads 44, thethreads 44 do not concentrate in the central part of thecigarette filter 61, and thethreads 44 can be arranged at regular intervals in a cross section of thecigarette filter 61. Thereby, the desired flavor can be obtained as a cigarette, and the product can be manufactured with a good appearance. - In addition, in the present embodiment, the distal ends 52 of the
thread introducing tubes 45 are arranged in theconvergence guide 43. Thus, the distal ends 52 of thethread introducing tubes 45 can be arranged in positions before a part where the density of thetow 18 increases. Thereby, the distal ends of thethread introducing tubes 45 do not prevent the stream of thetow 18, and the frequency of malfunctions, such as the problem that the apparatus is clogged with thetow 18, is reduced. Even when thethreads 44 are introduced into thetow 18 in theconvergence guide 43, thethreads 44 do not move thereafter or have a concentrated arrangement. This is because the filling density is uniform between thetow 18 in the position among the distal ends 52 of thethread introducing tubes 45 and thetow 18 located outside thethread introducing tubes 45, when thetow 18 is sent through theconvergence guide 43, and the relative positions of thethreads 44 in the cross section of thecigarette filter 61 are not changed even when thewhole tow 18 is compressed thereafter in thetongue 42. - Further, according to the present embodiment, the
thread introducing tubes 45 are arranged at regular intervals around theoutlet 46 of thestuffer jet 41. Thus, thethreads 44 can be arranged with a good appearance in the cross section of thecigarette filter 61. - The present invention is not limited to the above embodiment. For example, although the distal ends 52 of the
thread introducing tubes 45 are provided in theconvergence guide 43 in the above embodiment, the distal ends 52 may be arranged in the introducingpart 42A of thetongue 42. -
- 11... Cigarette filter manufacturing apparatus, 18... Tow, 41... stuffer jet, 41A... Central axis, 42... Tongue, 42A... Introducing part, 43... Convergence guide, 44... Thread (string), 45... Thread introducing tube, 46... Outlet, 47... Edge part, 52... Distal end
Claims (7)
- A cigarette filter manufacturing apparatus (11), characterized by comprising:a stuffer jet (41) which sends a tow (18) together with air;a tongue (42) which molds the tow (18) into a bar;a convergence guide (43) which is provided in a position between the stuffer jet (41) and the tongue (42), and converges the tow (18) while guiding the tow (18) toward the tongue (42); anda plurality of thread introducing tubes (45), intervals between which are reduced toward downstream in a position between an outlet (46) of the stuffer jet (41) and an introducing part (42A) of the tongue (42), the thread introducing tubes (45) supplying respective threads (44) into the tow (18) from respective downstream distal ends (52), wherein the distal ends (52) of the thread introducing tubes (45) are arranged in the convergence guide (43).
- The cigarette filter manufacturing apparatus (11) according to Claim 1, characterized in that the distal ends (52) of the thread introducing tubes (45) extend in parallel with a central axis (41A) of the stuffer jet (41).
- The cigarette filter manufacturing apparatus (11) according to Claim 2, characterized in that the distal ends (52) of the thread introducing tubes (45) are provided in positions inner than an edge part (47) of the stuffer jet (41), the edge part (47) defining the outlet (46) of the stuffer jet (41).
- The cigarette filter manufacturing apparatus (11) according to Claim 3, characterized in that a space is provided between the distal ends (52) of the thread introducing tubes (45).
- The cigarette filter manufacturing apparatus (11) according to Claim 1, characterized in that the thread introducing tubes (45) are arranged at regular intervals around the outlet (46) of the stuffer jet (41).
- A cigarette filter manufacturing method, characterized by comprising:supplying a plurality of threads (44) from distal ends (52) of thread introducing tubes (45), which extend such that intervals between them are reduced toward downstream, in a position between an outlet (46) of the stuffer jet (41) and an introducing part (42A) of the tongue (42), the distal ends (52) being provided in a convergence guide (43) located between the stuffer jet (41) and the tongue (42); and molding the tow (18) containing the threads (44) into a bar in the tongue (42).
- The cigarette filter manufacturing method according to Claim 6, characterized in that the distal ends (52) of the thread introducing tubes (45) extend in a direction parallel with a stream of the tow (18) sent from the stuffer jet (41).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/053716 WO2012114437A1 (en) | 2011-02-21 | 2011-02-21 | Cigarette filter manufacturing device and cigarette filter manufacturing method |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2679106A1 EP2679106A1 (en) | 2014-01-01 |
EP2679106A4 EP2679106A4 (en) | 2017-03-22 |
EP2679106B1 true EP2679106B1 (en) | 2018-05-02 |
Family
ID=46720258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11859523.0A Not-in-force EP2679106B1 (en) | 2011-02-21 | 2011-02-21 | Cigarette filter manufacturing device and cigarette filter manufacturing method |
Country Status (5)
Country | Link |
---|---|
US (1) | US10039316B2 (en) |
EP (1) | EP2679106B1 (en) |
JP (1) | JP5487357B2 (en) |
HU (1) | HUE039277T2 (en) |
WO (1) | WO2012114437A1 (en) |
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US9055768B2 (en) * | 2011-03-25 | 2015-06-16 | Hauni Maschinenbau Ag | High speed object inserter and related methods |
WO2013132434A1 (en) * | 2012-03-05 | 2013-09-12 | Montrade S.R.L. | Method and device for supplying filter material to a filter rod forming machine |
KR101696132B1 (en) | 2013-03-06 | 2017-01-13 | 니뽄 다바코 산교 가부시키가이샤 | Cigarette production method, cigarette, and double cigarette |
CN105142431B (en) * | 2013-03-06 | 2019-05-14 | 日本烟草产业株式会社 | Cigarette manufacturing method and cigarette and to cigarette |
JP6203644B2 (en) * | 2014-01-06 | 2017-09-27 | 株式会社ダイセル | Spreading body widening unit, width adjusting jig, and opening body manufacturing method |
EA033296B1 (en) * | 2014-07-18 | 2019-09-30 | Джапан Тобакко Инк. | Apparatus and method for producing cigarette filter |
PL3171717T3 (en) * | 2014-07-22 | 2021-04-19 | Jt International Sa | Method and apparatus for forming a filter rod |
GB201420733D0 (en) * | 2014-11-21 | 2015-01-07 | British American Tobacco Co | Apparatus and method for filter manufacture |
RU2719213C2 (en) * | 2015-08-24 | 2020-04-17 | Филип Моррис Продактс С.А. | Method of drying filter rods |
CN112741369A (en) * | 2021-02-09 | 2021-05-04 | 湖北中烟工业有限责任公司 | Soaking type hollow filter stick tow essence adding device and using method |
CN112772970B (en) * | 2021-02-09 | 2022-10-25 | 湖北中烟工业有限责任公司 | Fragrance-dropping hollow filter stick tow perfuming device and using method |
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- 2011-02-21 EP EP11859523.0A patent/EP2679106B1/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
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JP5487357B2 (en) | 2014-05-07 |
WO2012114437A1 (en) | 2012-08-30 |
US20130337987A1 (en) | 2013-12-19 |
JPWO2012114437A1 (en) | 2014-07-07 |
EP2679106A1 (en) | 2014-01-01 |
EP2679106A4 (en) | 2017-03-22 |
US10039316B2 (en) | 2018-08-07 |
HUE039277T2 (en) | 2018-12-28 |
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